CN209074712U - Exploration of common bile duct sheath - Google Patents

Abstract

The utility model discloses a common bile duct exploration sheath, which is characterized in that: a horizontal tube and a vertical tube located at the head of the sheath tube are included; the horizontal tube and the vertical tube are communicated with each other through a curved tube; One end of the horizontal pipe away from the curved pipe has an opening; the outer wall of the curved pipe is provided with a through hole; the outer wall of the vertical pipe is provided with a water outlet joint; the vertical pipe is far away from the curved pipe A base is arranged at one end of the base; a channel communicated with the vertical tube is arranged in the base; an anti-reflux pad is arranged on the inner wall of the channel; an elastic hole for the choledochoscope to pass through is arranged on the anti-reflux pad. After the utility model enters the common bile duct, the pneumoperitoneum and laparoscopic video can be closed, thereby avoiding the complications caused by long-term pneumoperitoneum and the wastage of the laparoscopic system; , Sediment-like stones and bile sludge are excreted from the body, reducing the complications caused by the above substances entering the abdominal cavity.

Description

common bile duct exploration sheath

technical field

The utility model relates to a common bile duct exploration sheath, in particular to a common bile duct exploration sheath for choledochoscopy.

Background technique

Intrahepatic and extrahepatic bile duct stones are common and frequently-occurring diseases in my country. Common bile duct exploration and extraction is the main surgical method for the treatment of this disease. The traditional surgical plan is open common bile duct exploration, which has disadvantages such as large trauma and slow recovery. With the development of laparoscopic and choledochoscopy techniques, laparoscopic common bile duct exploration and choledochoscopy are used for the treatment of intrahepatic and extrahepatic bile duct stones. Compared with traditional open surgery, it has the advantages of less trauma, faster recovery and concurrent The advantages of less disease and so on.

At present, when the choledochoscope is inserted into the peritoneal trocar cannula for common bile duct exploration and stone extraction, this method has many disadvantages: 1. Pneumoperitoneum needs to be established during the entire operation, and long-term pneumoperitoneum easily affects the diaphragmatic muscle. Swing, affecting breathing and circulation, the absorption of a large amount of carbon dioxide can cause acidosis and ion disorders, high-pressure carbon dioxide backflow through veins, and even gas embolism, endangering the patient's life; 2. During choledochoscopy, a large amount of infectious bile, lithotripsy , Biliary sludge and choledochoscopy flushing fluid flow into the abdominal cavity through the incision, which can easily lead to abdominal infection and abdominal abscess. After the gravel and biliary sludge enter the abdominal cavity, it is difficult to remove it, resulting in abdominal adhesion, intestinal obstruction, internal fistula, abdominal abscess and other complications. 3. After the common bile duct is incised, the pressure of the common bile duct decreases and collapses, which increases the difficulty of entering the common bile duct;

Utility model content

According to the technical problem raised above, a common bile duct exploration sheath is provided. The technical means adopted by the utility model are as follows:

A common bile duct exploration sheath, comprising a horizontal tube and a vertical tube located at the head of the sheath;

The horizontal tube and the vertical tube are communicated through a bend, that is, the head end of the sheath tube is L-shaped;

One end of the horizontal pipe away from the elbow has an opening;

The outer wall of the elbow is provided with a through hole;

The outer wall of the vertical pipe is provided with a water outlet joint;

One end of the vertical pipe away from the curved pipe is provided with a base;

The base is provided with a channel communicating with the vertical pipe;

The inner wall of the channel is provided with an anti-reflux pad;

The material of the anti-reflux pad is silica gel;

The anti-reflux pad is provided with an elastic hole for the choledochoscope to pass through. After the choledochoscope passes through the elastic hole, the elastic hole fits the choledochoscope to form a seal and prevent reflux.

The shape of the through hole is consistent with the orthographic projection (projection along the axis direction of the horizontal pipe) on the elbow after the opening is inclined by 15° to the elbow around its upper end;

The included angle between the plane where the through hole is located and the axis of the vertical pipe is greater than 45° and less than or equal to 60°.

The arrangement of the through hole enables the horizontal tube to be inserted into the common bile duct, the part of the through hole close to the vertical tube will not be exposed outside the common bile duct, and the through hole is along the axis of the vertical tube. The projection of is smaller than the inner diameter of the vertical tube.

The material of the horizontal pipe, the curved pipe and the vertical pipe is silica gel, so it has a certain elasticity, and the curved pipe has a certain degree of curvature. Therefore, the sheath tube can be basically bent into a straight line at the bend tube, and then inserted into the abdominal cavity by poking.

The outer diameter of the vertical tube is 0.9 cm, and because the inner diameter of the poke card is basically 1 cm, the outer diameter of the vertical tube may be slightly smaller than 1 cm;

The outer diameter of the horizontal pipe is 6 mm, 8 mm or the same as the outer diameter of the vertical pipe.

The length of the tube section of the sheath tube head beyond the cylindrical surface where the vertical tube is located is 1 cm.

The wall thickness of the horizontal pipe, the curved pipe and the vertical pipe is 1 mm, which has good support.

The length of the vertical tube is 30-60 cm, and can directly reach the common bile duct through the abdominal wall.

Compared with the prior art, the utility model has the following advantages:

1. The head end of the sheath tube is L-shaped, and the outer wall of the elbow is provided with a through hole, which can be placed in the outer casing of the poke card after an appropriate amount of bending;

2. The head end of the sheath is L-shaped, and it is placed into the common bile duct through the common bile duct incision, which has a good fixation effect;

3. The horizontal tube, curved tube and vertical tube are made of silicone material, which avoids the damage to the choledochoscope caused by poke on the outer casing wall during the process of choledochoscopy stone extraction;

4. The head end of the sheath tube is L-shaped, and the outer wall of the elbow is provided with a through hole. The choledochoscope can probe the lower and upper sections of the common bile duct through the opening on the horizontal tube and the through hole on the outer wall of the elbow;

5. After the sheath tube enters the common bile duct, the pneumoperitoneum and laparoscopic video can be closed, avoiding the complications of long-term pneumoperitoneum and the loss of the laparoscopic system;

6. The choledochoscope can directly enter the common bile duct along the sheath tube, and identify the direction of the lower and upper sections of the common bile duct through the opening on the horizontal tube and the through hole on the wall along the outer edge of the curved tube;

7. The outlet joint is connected to a negative pressure suction tube, which can expel infectious bile, flushing fluid, sediment-like stones and bile mud from the body, reducing the complications caused by the above substances entering the abdominal cavity.

Based on the above reasons, the present invention can be widely promoted in the fields of medical equipment and the like.

Description of drawings

In order to illustrate the embodiments of the present invention or the technical solutions in the prior art more clearly, the following briefly introduces the accompanying drawings used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description The drawings are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can also be obtained from these drawings without creative labor.

FIG. 1 is a schematic diagram of a common bile duct exploration sheath in a working state in a specific embodiment of the present invention.

FIG. 2 is a schematic diagram of the common bile duct exploration sheath in a working state (insertion of a choledochoscope) in a specific embodiment of the present invention.

Detailed ways

In order to make the purposes, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. The embodiments described above are a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

As shown in Figures 1 and 2, a common bile duct exploration sheath includes a horizontal tube 1 and a vertical tube 2 located at the head of the sheath;

The horizontal pipe 1 and the vertical pipe 2 are communicated through the elbow 3;

One end of the horizontal pipe 1 away from the elbow 3 has an opening 4;

The outer wall of the elbow 3 is provided with a through hole 5;

The outer wall of the vertical pipe 2 is provided with a water outlet joint 6;

The end of the vertical pipe 2 away from the elbow 3 is provided with a base 7;

The base 7 is provided with a channel 8 communicating with the vertical pipe 2;

The inner wall of the channel 8 is provided with an anti-reflux pad 9;

The anti-reflux pad 9 is provided with an elastic hole 11 for the choledochoscope 10 to pass through.

The shape of the through hole 5 is consistent with the orthographic projection on the elbow 3 after the opening 4 is inclined to the elbow 3 by 15° around its upper end;

The included angle between the plane where the through hole 5 is located and the axis of the vertical pipe 2 is greater than 45° and less than or equal to 60°.

The material of the horizontal pipe 1 , the curved pipe 3 and the vertical pipe 2 is silica gel.

The outer diameter of the vertical pipe 2 is 0.9cm;

The outer diameter of the horizontal pipe 1 is 6 mm, 8 mm or the same as the outer diameter of the vertical pipe 2 .

The length of the tube section of the sheath tube head beyond the cylindrical surface where the vertical tube 2 is located is 1 cm.

The wall thickness of the horizontal pipe 1 , the elbow pipe 3 and the vertical pipe 2 is 1 mm.

The length of the vertical pipe 2 is 30-60 cm.

Establish pneumoperitoneum and insert the poke card through the abdominal wall, take out the poke card push rod, and connect the water outlet joint 6 to the negative pressure suction tube, so that the horizontal tube 1, the elbow tube 3 and the vertical tube 2 are connected to the negative pressure suction tube. Connected.

The sheath is inserted into the common bile duct 12 through a poke and is gradually approached to the incision of the common bile duct 12, and the sheath is inserted into the common bile duct 12 through the incision. When the vertical tube 2 and the common bile duct 12 are at an obtuse angle, the sheath The head of the tube enters the distal end of the incision of the common bile duct 12 upwards, and when the vertical tube 2 and the common bile duct 12 form an acute angle, the head of the sheath enters the proximal end of the incision of the common bile duct 12 upward.

Adjust the negative suction pressure of the negative pressure suction tube so that the negative pressure water output is the same as the water input and bile volume of the choledochoscope 10, so as to avoid the collapse of the common bile duct 12 or the overflow of the liquid in the common bile duct 12 through the incision.

Close the pneumoperitoneum, stop the laparoscopic video system, inject liquid paraffin through the sheath tube, and insert the choledochoscope 10 through the elastic hole 11. The through hole 5 enters the intrahepatic and extrahepatic bile ducts for exploration and stone extraction.

After removing intrahepatic and extrahepatic bile duct stones, pneumoperitoneum was established again and the laparoscopic system was opened, the sheath was removed, and the common bile duct 12 incision was sutured.

Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present utility model, but not to limit them; although the present utility model has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that : it can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements to some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the various embodiments of the present utility model Scope of technical solutions.

Claims (7)

1. a kind of exploration of common bile duct sheath, it is characterised in that: horizontal tube and vertical pipe including being located at the sheath tube head；

It is connected between the horizontal tube and the vertical pipe by bend pipe；

The horizontal tube has opening far from one end of the bend pipe；

The outer tube wall of the bend pipe is equipped with through-hole；

The outer wall of the vertical pipe is equipped with water outlet connector；

The vertical pipe is equipped with pedestal far from one end of the bend pipe；

The channel being connected to the vertical pipe is equipped in the pedestal；

The vias inner walls are equipped with antireflux pad；

The antireflux pad is equipped with the springhole passed through for choledochoscope.

2. sheath according to claim 1, it is characterised in that: the shape of the through-hole and the opening are around the upper end to institute The orthographic projection stated after bend pipe tilts 15 ° on the bend pipe is consistent；

The angle of plane and the vertical pipe axis where the through-hole is greater than 45 ° and is less than or equal to 60 °.

3. sheath according to claim 1, it is characterised in that: the material of the horizontal tube, the bend pipe and the vertical pipe Matter is silica gel.

4. sheath according to claim 1, it is characterised in that: the outer diameter of the vertical pipe is 0.9cm；

The outer diameter of the horizontal tube is 6mm, 8mm or consistent with the outer diameter of the vertical pipe.

5. sheath according to claim 1, it is characterised in that: the sheath tube head is beyond cylindrical surface where the vertical pipe The a length of 1cm of pipeline section.

6. sheath according to claim 1, it is characterised in that: the wall of the horizontal tube, the bend pipe and the vertical pipe Thickness is 1mm.

7. sheath according to claim 1, it is characterised in that: a length of 30~60cm of the vertical pipe.